On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as expected. For example when resuming from system sleep, it seems to lose backlight settings. Forcing Intel driver fixes the problem so add this machine the ACPI video detect blacklist. Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> --- drivers/acpi/video_detect.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index f0447d3daf2c..a697b77b8865 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -170,6 +170,14 @@ static struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_vendor, + .ident = "HP EliteBook Revolve 810", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Revolve 810 G1"), + }, + }, + { + .callback = video_detect_force_vendor, .ident = "Lenovo Yoga 13", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html